Відео

I don't Kerr

I followed Sir Roger Penrose and I finally just rested on only numbers. During my journey. Yes! He is so absolutely timeless

Thank you! I was a little lost amid this battle between giants. I now understand! I love you.

Y’all coming for my girl Sabine and it’s from a disingenuous and dangerous stand point😡. This is obviously, and I say obviously, as it is clear, a subjective argument. The only thing we do know from, you know… history-is that difference in opinion directly promotes change. Change is good as change is natural (little philosophical sorry). 2 singularities, 1 singularity… what’s the difference when the real evidence is always in human behavior. Our standpoints will always be more evidence of the existence of ego than anything else. Great video though!

If one makes the photon massless, then theoretically one will get a singularity. Adding the vacuum energy (NEARLY ZERO) to general relativity removes the singularity.

Time is intimately related to space. When you can't talk about time, you can't talk about space. On the null geodesic time doesn't make sense, so space also doesn't. What's inside a black hole? There is no inside of a black hole!

I rather like this presentation very much but have a couple of gripes, offered helpfully I trust: 1) Sabine is pronounces Zab-een-eh. You wouldn't like your name mispronounced. 2) The host makes a couple of ridiculous sounding misstatements, which I could see through, but which I feel would confuse the lay listener. E.g., "Co-ordinate time is meaningless" - very misleading. So the "t" co-ordinate in the most commonly presented form of the Schwartzschild metric is meaningless? These sorts of sloppy statements make me cringe. best of luck DKB

I cannot rule out that there maybe some flaw in Kerr's elaboration of his rebuttal to Penrose theorem. But I am pretty sure that singularities do not exist in Nature in whatever form you want them to take. There are no infinities in Nature, we may say that Nature rejects them in the first place in order to prevent itself a self-destruction. The problem has to do with GR and its lacks of connection with quantum physics. The singularities claimed by Penrose are a property of a mathematical model which does not have any adherence with reality.

great but music annoying

Hoping someone can correct me on this….my impression is with inflation it is likely that some type of multiverse complex would follow if inflation is correct. So…can one have an inflation model being correct while nullifying that a multiverse…that is inflation that would not lead to a multiverse?

I think Roy Kerr is right.

Very brave to show massive physics channels getting it wrong. May you not be affected by any backlash from the fans. I really appreciate your willingness to get into the weeds and explain what the disagreement is.

Right use made up parameter to define proper time for light and then make pikatchu face when it ends 😂

Music is annoying

Just out of curiosity, is the narrator your wife? I've always just assumed that she was, but I just realized I don't actually know. No particular reason I'm asking beyond simply curiosity, so feel free to "No comment" me if you'd prefer not saying. Either way, another really interesting video. Keep up the good work. :)

Thanks to great physicists, explaining with examples,I could finally grasp the meaning of affine parameter of null geodesic that has been in news recently!

that Sabine person has been refuted more than a few times now. I'm not sure if her criticisms should be considered in the same way as others. good video E: seeing their obvious "blunders" makes me think their intentions are not as pure and honest as some might think. humans are humans after all and agendas are what drives most. such a shame. massive W for Penrose.

Some one could ask NASA about the way they do slingshot's, with their space craft. Newtons laws didn't work for that. When Elon's car didn't make it's shot, I said Ah to myself, so NASA made him learn the hard way eh?

Tankyo penrose tong revel infinit Big banger lite of truth.

Even if actual singularities are permitted in GR as solutions to realistic matter distributions, it does not mean you have to "quantize gravity". A singularity is not really an incompleteness, it only means the time evolution becomes non-deterministic. But just think about that for one millisecond! You are telling me quantum mechanics (as presently widely understood) is nondeterministic. But isn't that exactly what you just said you did not enjoy about GR singularities? You cannot talk out both sides of your mouth like that and have my respect! As Lenny Susskind often says these days, Gravity/GR _is already a quantum theory!_ The missing ingredient here is non-trivial spacetime topology. But that's a quantum theory obtained from GR --- akin to a particle postulate (it inserts a Planck constant into GR), which is not normally presumed in most GR textbooks treatments, to their detriment, except spacetime topology is extremely gnarly (the realm of 4-manifolds) so a textbook author can be forgiven.

No. There is a boundary between the matter and anti-matter “sheets” of spacetime. Hence, the singularities terminate as stereo enantiomers. 😊 0:02

The music is a bit too loud. Otherwise good stuff :)

Sir Roger is a giant. To argue against him is pointless. They guy has made his mark on so many different subjects.

Love these videos! I am uneducated in these topics, but love listening/learning about them. I find your channel to be a great resource for learning about new things. I knew (generally, no details) what a geodesic was, but never heard of an affine parameter. Thanks Phil!

i’d love to be interviewed for this channel

All of these cranks especially Sabine Hossenfelder are extremist criminal right wing cranks

This explains the Kessel run in less than 12Parsecs. Now explain the 100m sprint in less than 100 yards

9.1.1 Information as Fundamental: The core premise that information, rather than matter or energy, is the foundational element of reality. Reality ≡ f(Information_states) 9.1.2 Unified Information Dynamics: All physical phenomena, from quantum mechanics to gravity, are manifestations of information processing. Laws_of_Physics ≡ Rules_of_Information_Processing 9.1.3 Computational Universe: The universe as a vast quantum computational system, with natural laws emerging from information algorithms. Universe ≡ Quantum_Computer(Initial_state → Current_state) 9.2 Integration of Major Physical Theories 9.2.1 Quantum Mechanics: Reinterpreted as a theory of information evolution and measurement. Ψ(t) = U(t)Ψ(0) ≡ Information_Evolution(Initial_info → Final_info) 9.2.2 General Relativity: Spacetime curvature as gradients in information density. G_μν = 8πT_μν ≡ Information_Curvature = Information_Energy_Content 9.2.3 Quantum Gravity: Emerges from the discrete nature of information at the Planck scale. Quantum_Gravity ≡ Information_Dynamics(Planck_scale) 9.2.4 Cosmology: Universal evolution as the unfolding of a cosmic computation. Cosmic_History ≡ Execution(Universe_Program) 9.3 Resolving Key Physics Problems 9.3.1 Quantum Measurement: Explained as irreversible information extraction. Measurement ≡ Information_Extraction(Quantum_state → Classical_info) 9.3.2 Arrow of Time: Emerges from the increase in processed information. Time_Direction ∝ ∇(Processed_Information) 9.3.3 Dark Energy and Dark Matter: Recast as information-based phenomena in the cosmic computation. Dark_Energy ≡ Background_Information_Potential Dark_Matter ≡ Hidden_Information_Structures 9.4 Philosophical and Metaphysical Integration 9.4.1 Consciousness: Emerges from complex information processing. Consciousness ≡ Integrated_Information_Processing(System) 9.4.2 Free Will: Reframed as the capacity for complex information-based decision making. Free_Will ∝ Complexity(Decision_Process) 9.4.3 Ethics: Based on principles of information creation, preservation, and complexity. Ethical_Value ∝ Δ(Valuable_Information)

Another excellent vid from this channel!

Consider this: It seems to me that Penrose' own CCC hypothesis, is contingent on what he is arguing against here, with singularity. NULL, as with infinity, may only be eternally approached in the 'real' world. If 'scale' is taken as a fourth, infinite spatial dimension, with an associated time dilation, wouldn't the singularity issue go away?.. as space and time 'shrink' eternally toward an infinitesimal point, that is never 'reached'. *spelling Terrific content as always!

Penrose is also right about consciousness. Did you know that anesthetics that work on us also work on single celled organisms? What do we have in common? Microtubules, baby! Orch OR for the win! 💪

Also, the statement in the intro is false. Penrose never discovered that black holes are real. Penrose is a theoretical physicist/mathematician, so he discovered nothing in reality. He only discovered or invented some new maths which pointed to some hypothesis, which in turn needed to be shown to most likely represent reality. Evidence points to black holes being factual, yet we really don't know much about them, and certainly we don't know and can not know what's beyond their horizon.

Sabine doesn't know what she is talking about

Gravity is matter absorbing a very little bit of infrared radiation in the 0.3mm to 4.3mm wavelenght range.Bombard matter with this radiation and check for any gravitational effects.

The problem is that this is, and always will be, only theoretical or hypothetical, and will never be actually proven to be in accordance to reality. IOW, there is no experiment to show the truth of the theorem. Unless we can actually create another universe identical to this one... And, how can something be something and exist with no time? That's illogical. If something exists, it exist in space and time. We can not say that something exists in space but not in time.

Here’s what I think: ThirdEyeTyrone (look him up if you don’t know him) proposes that singularities are an element of our perception. He made the example that in a viewing field, singularities exist at infinitely far away points in that view field… we know this to be trivially true…and that this doesn’t necessarily mean there exists some physical singularity it’s a description of the limit of our perception of information. In this sense, a black hole singularity might actually be real, it’s just us observers observing it CANT perceive it and so for all intents and purposes it appears like a singularity. Aside from being a correspondence between observation and perception (in line with complimentarity) it also is a statement that black holes are information constructs, and that this is fundamental.

The term "affine" is used in many areas, including computer science, mathematics, and machine learning. It has interesting definitions in each field.

These people actually have a brain.lol

Don’t you think that the black holes are the keys 🔑 for the parallel universe, as the mass and particles and energies never been destroyed, and those phenomenal are able to create another big bang 💥 in some other dimensions in the parallel universe and causing another beginning of life and universes, because if something happened before, the will happens again and again !

Funny that so many physicist are tend to believe certain infinities to exist and certain not. There is absurd infinities(inf mass, density and so on) and realisticall(obvious imo) like infinite 3D space and time(no evidence of materia coming to be from nothing, but Einsteins singularity). Should ask a psychologist why is that.

I may not be the best at understanding physics, so I can't comment much on that. But for one I hope to have the same level of intelligence as Penrose as I grow older... and the skydiving shots at 3:28 make my stomach feel weird, that's crazyyy

Penrose has an extremely profound mind and everything he says must be deeply analyzed and understood before criticizing it, before he's usually correct.

Hossenfelder hasn't been a trustworthy creator since she decided to do a video on trans people and vomited out 30 minutes of anti-trans fear mongering

Artificial problem created only to divert attention from real problems western science is facing.

What do the Twistors of Roger Penrose and the Geometric Unity of Eric Weinstein and the exploration of one extra spatial dimension by Lisa Randall and the "Belt Trick" of Paul Dirac have in common? Is the following idea a “Quantized” model related to the “Vortex Theory” proposed by Maxwell and others during the 19th century? In Spinors it takes two complete turns to get down the "rabbit hole" (Alpha Funnel 3D--->4D) to produce one twist cycle (1 Quantum unit). Can both Matter and Energy be described as "Quanta" of Spatial Curvature? (A string is revealed to be a twisted cord when viewed up close.) Mass= 1/Length, with each twist cycle of the 4D Hypertube proportional to Planck’s Constant. In this model Alpha equals the compactification ratio within the twistor cone, which is approximately 1/137. 1= Hypertubule diameter at 4D interface 137= Cone’s larger end diameter at 3D interface where the photons are absorbed or emitted. The 4D twisted Hypertubule gets longer or shorter as twisting or untwisting occurs. (720 degrees per twist cycle.) If quarks have not been isolated and gluons have not been isolated, how do we know they are not parts of the same thing? The tentacles of an octopus and the body of an octopus are parts of the same creature. Is there an alternative interpretation of "Asymptotic Freedom"? What if Quarks are actually made up of twisted tubes which become physically entangled with two other twisted tubes to produce a proton? Instead of the Strong Force being mediated by the constant exchange of gluons, it would be mediated by the physical entanglement of these twisted tubes. When only two twisted tubules are entangled, a meson is produced which is unstable and rapidly unwinds (decays) into something else. A proton would be analogous to three twisted rubber bands becoming entangled and the "Quarks" would be the places where the tubes are tangled together. The behavior would be the same as rubber balls (representing the Quarks) connected with twisted rubber bands being separated from each other or placed closer together producing the exact same phenomenon as "Asymptotic Freedom" in protons and neutrons. The force would become greater as the balls are separated, but the force would become less if the balls were placed closer together. Therefore, the gluon is a synthetic particle (zero mass, zero charge) invented to explain the Strong Force. The "Color Force" is a consequence of the XYZ orientation entanglement of the twisted tubules. The two twisted tubule entanglement of Mesons is not stable and unwinds. It takes the entanglement of three twisted tubules to produce the stable proton.

Requirement for Nobel - Sweater with tweed jacket

Great contribution this video is. Also, I might add that it is trivial to prove that an affine parameter is always a linear function of proper time (not coordinate time, but proper time). So if one is bounded so is the other. One can imagine their relationship as this: We can use a rotated line (affine parameter: applicable to light too) to index points on the original line (proper time: which for light is unusable). Sorry Prof. Kerr

Click-bait, skip this.

Christian 'understanding' of physics and cosmology, LOL! 🤣

@PhilHalper1 I am in the middle of writing about the contingency argument, (an attempt at a refutation, as the argument drives me insane) and have found yours and Alex's videos a great source of information. So thank you. P.S. Great video on Sir Roger Penrose, an inspiration of mine, great to see one of the (if not thee) most accomplished men in science and maths, getting some love! I feel as if some of the community have been a little harsh/hard on him and his ideas as of late! So great to see something come up smelling of 'Pen' roses! Δ